Paul R Hill / Unconventional Flying Objects A Scientific Analysis 1995

John R Frick / Unidentified Flying Objects Profile of an Alien Signed 1st 1980

The Analysis of Objects by Augustine Osgniach. 1938 1st Ed. Metaphysics. Aquinas

"The Report on Unidentified Flying Objects" by Edward J Ruppelt, 1956 1st Ed, HC

George Yeld / ALPINE JOURNAL RECORD OF MOUNTAIN ADVENTURE AND SCIENTIFIC 1st ed

UFO Science Bundle Hill & Watts | Unconventional Flying Objects + UFO Quest 1990

The Scientific Origins of National Socialism - Daniel Gasman 1971 1st ed HB-DJ